Individuals may register to vote online in Colorado. Online voter registration requires that you have a valid Colorado Driver’s License number or Colorado ID card number (to obtain a Colorado ID card, you must visit a DMV location in person). If you have moved, you must first update your address with the DMV, which you can do through the Colorado DMV website, or else at the Colorado Secretary of State’s website. Online applications must be submitted on or before the deadline to be valid for any specific election.

In-Person or by Mail

You may also register to vote in person at any of the following locations:

A Colorado DMV office when you apply for a driver’s license or update your driver’s license information. Click hereto find a DMV location near you.

Any state office that provides public assistance, including those that primarily serve individuals with disabilities.

U.S. Armed Services recruitment offices.

Any federal, state, or local government office, or else non-government office, that provides voter registration services or applications, as well as voter service and polling centers.

Voter registration forms may also be downloaded from the Colorado Secretary of State’s website. Applicants can mail, scan, or deliver the voter registration forms to their County Clerk and Recorder office (find yours here), or to the Colorado Department of State, Elections Division, at:

Colorado Department of State

Elections Division

1700 Broadway, Suite 200

Denver, CO 80290

Registration Eligibility

To be eligible to register in Colorado you MUST:

be at least 18 years old by the time of the election in which you wish to vote;

be a citizen of the United States;

have resided in Colorado for at least 22 days prior to the election in which you wish to vote; and

not be serving a sentence (including parole) for any felony conviction (see below for more information on voting for those who have been convicted of a felony).

Identification Required for Registration

Applicant must provide a Colorado driver’s license, a Colorado ID card, social security number, or one of the approved forms of identification below. You may provide the last four digits of your Social Security number only if you don’t have either a Colorado driver’s license or ID card. However, if you do have either a Colorado driver’s license or ID card, you must use one of those forms of identification to complete your application; you cannot use your Social Security number. If you do not have any of these forms of identification and do not have a social security number, you may also provide one of the following approved forms of identification, so long as if it shows your address, that address is in Colorado:

A valid U.S. passport;

A valid employee ID card with a photograph that was issued by any branch, department, agency, or entity of the United States government or by the state of Colorado, or by any county, municipality, board, authority, or other political subdivision of Colorado;

A valid pilot’s license issued by the Federal Aviation Administration or other authorized agency of the United States;

A valid U.S. military identification card with a photograph;

A copy of a current utility bill, bank statement, government check, paycheck, or other government document that shows the name and address of the elector. For example:

A cable bill or telephone bill,

Documentation from a public institution of higher education in Colorado containing at least the name, date of birth, and legal residence address of the student,

A paycheck from a government institution or private company, or

A Certificate of Degree of Indian or Alaskan Native Blood.

A valid Medicare or Medicaid card issued by the Centers for Medicare and Medicaid Services (formerly the United States Health Care Financing Administration);

A certified copy of a U.S. birth certificate issued in the United States;

Certified documentation of naturalization;

A valid student identification card with a photograph issued by an institute of higher education in Colorado;

A valid veteran identification card issued by the United States Department of Veterans Affairs Veterans Health Administration with a photograph;

You can vote early in person 10 days before a primary election and fifteen days before a general election at your early vote polling place. Call your county clerk to find your early voting polling place.

If You Want to Vote Early

Mail-in ballots will begin being mailed out 22 days before the election, at which point ballots will be mailed within 72 hours after the voter’s request for a mail-in ballot is received. Any eligible voter who receives a mail ballot may cast it at a Voter Service and Polling Center prior to Election Day.

If You Want to Vote Absentee

Any eligible voter may elect to vote by mail-in (or absentee) ballot either permanently or for just the current year by filling out and returning the Application for Mail-In Voting.

If you requested an absentee ballot but have not yet received it, or if you spoiled it, you may request that the designated election official at your polling place issue you a replacement mail-in ballot. You can check the status of your absentee ballot online. If you still have questions, contact your County Clerk.

Your ballot must be returned to your County Clerk’s office by 7:00p.m.on the day of the election. Be sure to carefully follow the instructions on your absentee ballot. You may return the ballot personally or by mail. Please note your ballot must be received, not postmarked, by 7:00p.m. on the day of the election.

Voting in Person after Requesting an Absentee Ballot

If you requested an absentee ballot, you don't have to surrender your mail ballot. You can just vote in person with an ID at your polling place. Polling centers open 15 days before the election.

Procedures for Voting by Absentee Ballot

If you wish to have your mail-in ballot mailed to you, the application must be received by your County Clerk's Office by close of business on the Tuesday that is seven days before the election.

You can also obtain a mail-in ballot in person at the County Clerk's Office until close of business on the Friday before the election.

You can submit your absentee/mail-in ballot either by mail or by dropping it off at a designated site. Contact your County Clerk’s Office for drop-off locations.

Absentee ballots must be received by the County Clerk no later than 7:00 p.m. on Election Day.

Applicant must provide a Colorado driver’s license, a Colorado ID card, a social security number, or one of the forms of identification listed below. You may provide the last four digits of your Social Security number only if you don’t have either a Colorado driver’s license or ID card. However, if you do have either a Colorado driver’s license or ID card, you must use one of those forms of identification to complete your application; you cannot use your Social Security number. If you do not have any of these forms of identification and do not have a social security number, you may also provide one of the following acceptable forms of ID, so long as if it shows your address, that address is in Colorado:

A valid U.S. passport;

A valid employee ID card with a photograph that was issued by any branch, department, agency, or entity of the United States government or by the state of Colorado, or by any county, municipality, board, authority, or other political subdivision of Colorado;

A valid pilot’s license issued by the Federal Aviation Administration or other authorized agency of the United States;

A valid U.S. military identification card with a photograph;

A copy of a current utility bill, bank statement, government check, paycheck, or other government document that shows the name and address of the voter. For example:

A cable bill or telephone bill,

Documentation from a public institution of higher education in Colorado containing at least the name, date of birth, and legal residence address of the student,

A paycheck from a government institution or private company, or

A Certificate of Degree of Indian or Alaskan Native Blood.

A valid Medicare or Medicaid card issued by the Centers for Medicare and Medicaid Services (formerly the United States Health Care Financing Administration);

A certified copy of a U.S. birth certificate issued in the United States;

Certified documentation of naturalization;

A valid student identification card with a photograph issued by an institute of higher education in Colorado;

A valid veteran identification card issued by the United States Department of Veterans Affairs Veterans Health Administration with a photograph;

Verification that a voter is a person committed to the department of human services and confined and eligible to register and vote.

Identification Requirements to Cast a Ballot

All voters who vote in-person will be required to show one of the approved forms of identification listed below. Voters who are casting mail-in ballots for the first time will be required to provide a photocopy of their identification.

A valid Colorado driver's license;

A valid Colorado ID card issued by the Department of Revenue;

A valid U.S. passport;

A valid employee ID card with a photograph that was issued by any branch, department, agency, or entity of the United States government or by the state of Colorado, or by any county, municipality, board, authority, or other political subdivision of Colorado;

A valid pilot's license issued by the Federal Aviation Administration or other authorized agency of the United States

A valid U.S. military identification card with a photograph

A copy of a current utility bill, bank statement, government check, paycheck, or other government document that shows the name and address of the voter. For example: A valid Medicare or Medicaid card issued by the Centers for Medicare and Medicaid Services (formerly the United States Health Care Financing Administration);

A cable bill or telephone bill,

Documentation from a public institution of higher education in Colorado containing at least the name, date of birth, and legal residence address of the student,

A paycheck from a government institution or private company, or

A Certificate of Degree of Indian or Alaskan Native Blood.

A certified copy of a U.S. birth certificate issued in the United States;

Certified documentation of naturalization;

A valid student identification card with a photograph issued by an institute of higher education in Colorado;

A valid veteran identification card issued by the United States Department of Veterans Affairs Veterans Health Administration with a photograph;

Also, if any form of ID listed above shows your address, that address must be in Colorado to be valid.

Provisional Ballots

An eligible elector who is unable to produce identification may cast a provisional ballot.

The designated election official shall attempt to verify that an elector who cast a provisional ballot is eligible to vote.

You will need to fill out an application to cast a provisional ballot. The provisional ballot affidavit includes a voter registration form. Note that if you are not registered to vote, but are eligible to register to vote, then as long as the affidavit contains all the needed information you will be registered to vote in the next election, regardless of whether the provisional ballot is counted this time.

If you have moved and are already registered to vote in Colorado, you can update your registration address onlineup until election day, or by printing and mailingthis form to your County Clerk, whose address you can find here. You may also fax or scan and email the form to the County Clerk’s office, or else deliver it in person. Finally, you can update or change your address in-person at a voter service and polling center prior to or on Election Day.

If you change you address fewer than 8 days before the election, you will not recieve a mail ballot. You need to go to a county clerk or voter service center to pick it up.

Visit the Secretary of State’s Uniformed and Overseas Electors websitefor resources and information on voting as a member of the Armed Services or as a civilian abroad. Answers to frequently-asked questions can be found here.

Military and overseas citizens can send and receive voting materials by fax and email. If you wish to use the fax or email options, you must indicate this on your FPCA. Instructions for doing so are found on the FVAP's Colorado-specific FPCA page.

Once a person who was convicted of a felony or offense serves his/her entire sentence—including parole—he/she may register to vote. You can vote even if you have not paid all of your restitution. A person becomes eligible to register to vote on the day he or she is released from parole. You will not receive any official letter telling you that you are eligible to vote.

If you were registered to vote before your felony imprisonment, your registration will have been cancelled, and you will need to re-register to vote. You may register to vote onlineif you have a Colorado driver’s license or a Colorado photo ID, or at any of the following locations:

A Colorado DMV office when you apply for a driver’s license or update your driver’s license information. Click hereto find a DMV location near you.

Any state office that provides public assistance, including those that primarily serve individuals with disabilities.

U.S. Armed Services recruitment offices.

Any federal, state, or local government office, or else non-government office, that provides voter registration services or applications, as well as voter service and polling centers.

Voter registration forms may also be downloaded from the Secretary of State’s website. Applicants can mail or deliver the voter registration forms to their County Clerk and Recorder office (find yours here), or to the Colorado Department of State, Elections Division, at:

Colorado Department of State

Elections Division

1700 Broadway, Suite 200

Denver, CO 80290

If you submit a voter registration application, but your name still appears in the database as a person under supervision, you will receive a notice from county elections officials that you are not eligible to vote. You will have an opportunity to respond that you completed your sentence and that the cancellation was in error. You may be asked for proof that you completed your parole, such as your parole discharge documentation.

Persons serving jail sentences for misdemeanors may register to vote and vote in any election. You will need to register before the deadline, and also need to update your address information by contacting the County Clerk in your county of residence (find your County Clerk here). Pretrial detainees (those who are in jail awaiting trial) may also register to vote and vote in any election. Persons who are out on bond but facing pending criminal charges may also register to vote and may vote in any election, up until they are convicted and either imprisoned or put on parole for a felony. Persons on probation may register to vote and vote in any election (although persons on parole cannot).